Nut-lock.



PATENTED APR. 28, 1908.

H.-HENTHORNE.

I NUT LOCK." APPLICATION IILED JAN. 6, 1908.-

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gitwwwo CJI HENRY HENTHORNE, OF NEWARK. OHIO.

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Specification of Letters Patent.

Patented April 28, 1908.

Application filed January 6, 1908. Serial No. 499,456.

To all whom it may concern:

Be it known that l, HENRY HENTHORNE, a citizen of the United States, residing at Newark, in the county of Licking and State of Ohio, have invented a certain new anduselul ii'npro'vement in Nut-Locks, of which the following is n. specification.

The object of this invent-ion is to provide an improved nut lock that can used in connection with the standard bolt and without alteration of the bolt preparatory to such use.

The inventor. is embodied in the instance of it here 1 i n and described, the invention 110- being confined to such instance.

In the accompanying drawingsFigure l is a plan view of the washer and lock; Fig. 2 is an edge view of the same; Fig. 3 is a view partly in section showing the lock and nut .pplied but without the nut-locking finger bent to lock the nut; Fi 4 is a view looking the parts from the right-hand side of Fig. but with the nut-locking linger turned down to nut-locking position.

the views 5 designates the washer, in the form of a ring with an opening 1 in one side. The locking device consists a piece of wire. preferably square in cross secti n, bent to form :1. ring portion 6 with a sho t spur t3 bentoutwardly with reference o the plane of the washer and inwardly with rciorenco to the axis of the washer, and with ether ong radially extending linger 6". he ring IS made of such diameter that on light contraction it fits and remains by fricn within the opening of the Washer 5 while the linger 6" stands radially in the opening 3 thereof. Internally the ring is of diameter ample to permit it and the washer to be passed easily onto the threaded cod oi the bolt. The bolt is designated 7.

ln practice the outer part of the parts to be scoured. together is lirst notched with a cold chisel, or lilo if necessary, at the bolt hole, as seen at so that when the spur 6* is placed opposite snid notch and driven therein its point is directed downward and by enet1'a' tion indcnts and engages the bolt. The square corner of the spur facilitates the penetration of the spur and but very slight peneoration suflices to effect the securing of the bolt from rotation with reference to the parts to be secured. The nut isturned up as tightly as desired and the nut-locking finger 6 bent first forward out of the opening 5" and then laterally across a side of the nut and around one of its corners, as best seen in Fig. s. It will be observed, therefore, that the nut is locked from turning with reference to the bolt and, as before stated, the bolt is locked from turning in the parts secured. It is better to first drive home the washer and locking device on the bolt before turning up the nut, because the locking device will prevent the bolt from rotating while the nut is being turned. WVith this invention, therefore, the ordinary bolt having a plain round or cylindrical shank and destitute in itself of means for preventin it from turning when inserted in a bolt ho e is rendered available for use.

l/Vhat I claim and desire to secure by Let ters Patent is:

1. In a not lock, the combination with a washer ha'vipg a central opening, of the looking device. cpnsisting of a wire rod bent to form a ring to fit within the wall of said central opening, said rod also having at one end a bolt-engaging spur and at the other end a finger to be bent to engage the superposed nut.

2. In a'nut lock, the combination with a washer. having a central opening and an open passage from said central opening through the washer, of the locking device consisting of a wire rod bent to form a ring to fit within the wall of the central opening of the washer, said rod also having at one end a bolt-engaging spur and at the other end a nut-em gaging finger, said finger extending through said '0 en passage from the central opening.

3. n a nut lock, the combination with a washer having a central opening and radial opening, of a locking device consisting of a wire rod bent to form a ring to fit within the wall forming the said central opening, and having at one end a bolt-engaging spur bent outwardly from the plane of the washer and inwardly with reference to the axis thereof, and at the other end forming a finger extending through the radial opening and having its end adapted to be bent to engage a superposed nut.

4. In a nut lock, the combination with the 5 Washer having a central opening, of a locking device consisting of a wire rod s uare in cross section bent to form a ring to t Within the wall of the central opening of the washer and its other end a finger adapted to be bent to engage and lock the sugarposed nut.

HENR HENTHORNE. Witnesses:

CHARLES A. LEDERER,

, 0MP. WILSON. 

